nlogn's log :: 천천히 달리기

import pickle

# write python dict to a file
mydict = {'a': 1, 'b': 2, 'c': 3}
output = open('myfile.pkl', 'wb')
pickle.dump(mydict, output)
output.close()

# read python dict back from the file
pkl_file = open('myfile.pkl', 'rb')
mydict2 = pickle.load(pkl_file)
pkl_file.close()

print mydict
print mydict2

{'a': 1, 'c': 3, 'b': 2}
{'a': 1, 'c': 3, 'b': 2}

Maybe you want something like this?

import pickle

# write python dict to a file
mydict = {'a': 1, 'b': 2, 'c': 3}
output = open('myfile.pkl', 'wb')
pickle.dump(mydict, output)
output.close()
print mydict

# read python dict back from the file
pkl_file = open('myfile.pkl', 'rb')
mydict = pickle.load(pkl_file)
pkl_file.close()
print mydict

# update dict and write to the file again
mydict.update({'d': 4})
output = open('myfile.pkl', 'wb')
pickle.dump(mydict, output)
output.close()

# read python dict back from the file
pkl_file = open('myfile.pkl', 'rb')
mydict = pickle.load(pkl_file)
pkl_file.close()
print mydict

Results:

{'a': 1, 'c': 3, 'b': 2}
{'a': 1, 'c': 3, 'b': 2}
{'a': 1, 'c': 3, 'b': 2, 'd': 4}

2. lstrip([chars])

 - 문자열 왼쪽 제거. chars지정이 없으면 공백문자를 제거. 지정되어 있으면 chars의 모든 조합을 제거

>>> "\t\n python".lstrip()
'python'
>>> ">>> python is good".lstrip('>')
' python is good'

3. rstrip([chars])

 - 문자열 오른쪽 제거. chars지정이 없으면 공백문자를 제거. 지정되어 있으면 chars의 모든 조합을 제거

>>> ">>> python is good <<<".rstrip('>< ')
'>>> python is good'